| 摘要 |
PURPOSE:To strengthen the protection of frame synchronization of interleaving by dispersing errors produced in a burst way to interleave frames of different timing. CONSTITUTION:A delay by a period of a frame of a different difference interleave or over is applied to each signal after interleave conversion through error correction coding circuits 31a-31d, interleave conversion circuits 32a-32d, Ti bit delay circuits 33a-33d and a transmission section 34 at a sender side Tx and the result is sent to a radio channel L. The signal is corrected for delay difference at the sender side Tx through a reception section 41, Ri bit delay circuits 42a-42d, frame detection circuits 43a-43d, a synchronization protection circuit 44, de-interleave conversion circuits 45a-45d and error correction circuits 46a-46d at a receiver side Rx and errors caused in a burst way are dispersed to frames of interleave in a different timing and the protection of frame synchronization of interleave is strengthened. |
